Muscle fibre type, roles of muscles

Question 1

What are slow oxidative fibres

Answer 1

• they are recruited to provide energy for submaximal aerobic work
• they contract intermittently to give overall low force of contraction
• individual fibres will recover very quickly
  -1:1 or 1:0.5
• ## can train every day and low intensity doesn’t cause fibre damage

Question 2

What are fast oxidative glycolytic fibres

Answer 2

• produce large amount of force quickly
• also have capacity to resist fatigue
• middle distance races eg 800m

Question 3

What are fast glycolytic fibres

Answer 3

• these are recruited in the last 2-10 seconds of contraction
• these will be accompanied by eccentric muscle fibre damage
• 4-10 days to recover

Question 4

what is the antagonistic muscle action

Answer 4

• muscles never work alone, they work in pairs to produce a coordinated movement. as the agonist shortens to create movement the antagonist lengthens to coordinate the action

Question 5

what is a fixator muscle

Answer 5

-a muscle that stabilises one part of the body while another part moves